Online PHP editor | rfc for atLZu

@ 2026-05-16T11:54:21Z

<?php

declare(strict_types=1);

class Game {
    public function __construct(
        public readonly string $name
    ) {}
}

class User {
    public function __construct(
        public readonly string $name
    ) {}
}

class GameCollection {
    private array $games = [];

    public function add(Game $game): void {
        $this->games[$game->name] = $game;
    }
    
    public function remove(Game $game): void {
        unset($this->games[$game->name]);
    }

    public function getAll(): array {
        return $this->games;
    }
}

class GameStore {
    # array<User->name, GameCollection>
    private array $loans;

    public function __construct(
        private GameCollection $games
    ) {}

    public function addGame(Game $game): void  {
        $this->games->add($game);
    }

    public function getAllGames(): array {
        return $this->games->getAll();
    }

    public function registerUser(User $user): void {
        $this->loans[$user->name] = new GameCollection();
    }

    public function checkOut(Game $game, User $user): void  {
        $this->loans[$user->name]->add($game);
        $this->games->remove($game);
    }

    public function checkIn(Game $game, User $user): void  {
        $this->loans[$user->name]->remove($game);
        $this->games->add($game);        
    }

    public function getAllOnLoan(): array {
        return array_map(fn($user) => $user->getAll(), $this->loans);
    }
}

$csgo       = new Game('CS:GO');
$exp33      = new Game('Expedition 33');
$marioBros  = new Game('Super Mario Bros');

$johnny = new User('Johnny');
$daniel = new User('Daniel');

$store = new GameStore(games: new GameCollection());

$store->addGame($csgo);
$store->addGame($exp33);
$store->addGame($marioBros);

$store->registerUser($daniel);
$store->checkOut($exp33, $daniel);

var_dump(
    'Daniel registers and checksOut Expedition 33',
    'Store Available Games',
    $store->getAllGames(),
    'On Loan',
    $store->getAllOnLoan()
);

$store->registerUser($johnny);
$store->checkIn($exp33, $daniel);
$store->checkOut($exp33, $johnny);

var_dump(
    'Daniel returns Expedition 33 and Johnny checksOut the same game',
    'Store Available Games',
    $store->getAllGames(),
    'On Loan',
    $store->getAllOnLoan()
);

Output for git.master, git.master_jit: string(44) "Daniel registers and checksOut Expedition 33" string(21) "Store Available Games" array(2) { ["CS:GO"]=> object(Game)#1 (1) { ["name"]=> string(5) "CS:GO" } ["Super Mario Bros"]=> object(Game)#3 (1) { ["name"]=> string(16) "Super Mario Bros" } } string(7) "On Loan" array(1) { ["Daniel"]=> array(1) { ["Expedition 33"]=> object(Game)#2 (1) { ["name"]=> string(13) "Expedition 33" } } } string(63) "Daniel returns Expedition 33 and Johnny checksOut the same game" string(21) "Store Available Games" array(2) { ["CS:GO"]=> object(Game)#1 (1) { ["name"]=> string(5) "CS:GO" } ["Super Mario Bros"]=> object(Game)#3 (1) { ["name"]=> string(16) "Super Mario Bros" } } string(7) "On Loan" array(2) { ["Daniel"]=> array(0) { } ["Johnny"]=> array(1) { ["Expedition 33"]=> object(Game)#2 (1) { ["name"]=> string(13) "Expedition 33" } } }

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2022-12-01 RFC: Property hooks - included in PHP 8.4
2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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